Lesson One: Root Words

When affixes are added to root forms the spelling can often change.Root forms change their meanings as affixes are added.

The root form (or base form) of a word is the form of the word without any affixes.un + happy + ly = unhappilyhappy is the root form"un" and "ly" are the affixesRoot forms change their meanings as affixes are added.Identify the root forms in these words:flyingproblematicdeclassifyunderratedcloudydisinterested